Each is a member of a family of birds called honeycreepers, and they all share the same common ancestor: a single finchlike species that scientists estimate arrived on the Hawaiian Islands about 5 ...

thus species are multiplied" (Darwin 1859, p. 120). Discussion of most topics within Evolutionary Biology begins with Darwin. Indeed, On The Origin of Species (1859) continues to influence much of ...

All viewers of this document can see this public note. This is the most explicit and concise description and definition of natural selection in On the Origin of Species. Darwin’s view here is ...

These facts seemed to me to throw some light on the origin of species -- that mystery of mysteries, as it has been called by one of our greatest philosophers. On my return home, it occurred to me ...